Ok, i know that i need to use green coolant. Dieselmans page reads that walmart super tech is ok. Now,it also states dont mix colors.
This coolant is ethylene glycol and diethylene glycolas 2main ingredients.It statesto use this. Is this coolant ok? it also stated that to use low silicate(what ever that is)(what is it)
the supertech coolant does not mention that.
It states on the bottle mixes with all coolants. is this ok?
heres the last sentence?i want to make sure i wont cause cavitation...
Ford does not recommend using propylene glycol-based coolants in any of their vehicles, or "universal" coolants that claim to be a replacement for any color antifreeze. They also have not approved the use of any organic acid tecnology (OAT) extended life coolants (ELC) in the PowerStroke cooling system.

4 gallons of anti-freeze concentrate. In agreement with International who made your engine, I recommend a conventional coolant with SCA, or a pre-charged conventional coolant for the early 99's (pre-2/2/99). For all other 99-up PSD's I recommend a Heavy Duty ELC. But the choice of coolant is yours.

Remove passenger's side block plug with 1/4" socket wrench driver, and drain coolant into suitable container (this is best done without an extension on the wrench, working under the truck from the top rear side of starter - no need to remove starter).

Remove thermostat housing and thermostat.

Re-install thermostat housing without thermostat, using old gasket (it's ok if it leaks a little while flushing).

Close radiator pet****, reinstall and finger-tighten both block plugs.

Again, fill degas bottle with distilled water.

Run engine a couple of minutes.

Drain radiator pet****, remove both block plugs.

Close radiator pet**** permanently.

Install both block plugs and tighten permanently.

(You may decide to flush with distilled water one more time if your tap water is extremely bad).

Install thermostat and new thermostat gasket.

Add 4 gallons of anti-freeze concentrate to the degas bottle.

If using SCA, add it to cooling system per SCA manufacturer's instructions (usually 3-4 pints).

Add distilled water to finish filling the system until the degas bottle indicates between min/max.

Replace degas bottle cap.

Rinse off any coolant from engine and underbody of vehicle.

Turn in-cab heater valve all the way to "hot". This will help you later to determine if the thermostat is operating or if there is air left in the system.

Run engine (or drive truck for faster heating), until thermostat opens and hot air is felt through heater in cab. Periodically check coolant level adding distilled water as necessary. If heater does not get hot (or stay hot), it may be necessary to rev engine or purge air from the cooling system.

Add distilled water until level equalizes (min/max mark) in degas bottle. (this may take several days).

Use test strip to test and add SCA if applicable.

This method will yield approximately a 50/50 mixture of coolant/distilled water. If in cold climates, it is always best to have the freeze protection tested with a quality refractometer.

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